In holographic approaches to Superconductivity, the critical behaviour is encapsulated by the dynamics of a dual theory, where interacting fields propagate in the bulk of a fictitious compactified extra-dimension, and whose geometry features dictate the evolution of the system with temperature and its reaction to external electromagnetic fields. Different localisations into the extra-dimensions correspond then to snapshots of the target theory at different energies. This picture is based on the AdS/CFT correspondence [1]}, [2]}, [3]}, the idea that certain strongly coupled theories can be described by an extra-dimensional dual theory which contains weak gravitational interactions.
